Fan Jonsbo FR-505WR 12 cm 800-1800 RPM 47.2 CFM 13.3-30 dB White

The Jonsbo FR-505WR is a 120 mm computer case fan designed to balance airflow, noise levels and visual integration in desktop systems. With a variable speed range from 800 to 1800 RPM, this white fan provides up to 47.2 CFM of airflow while maintaining low acoustic output between 13.3 and 30 dB. The fan's neutral white finish supports a clean internal look and coordinates with light-coloured builds or white-themed components.

Advantages

The FR-505WR delivers a combination of efficient airflow and low noise, making it suitable for general-purpose cooling in cases and radiators. Its broad RPM range allows for quieter operation at lower loads and increased airflow when additional cooling is required. The white housing and blades offer a visually consistent appearance in white or neutral-colour systems without adding visual clutter.

Suitable for

• Case exhaust or intake in mid-tower and full-tower enclosures
• Replacement or upgrade for stock 120 mm fans
• Cooling support for air-cooled CPU and GPU layouts
• Use on 120 mm radiator mounts in compact liquid-cooling loops where static pressure requirements are moderate

Key specifications

• Fan size: 120 mm (12 cm)
• Speed range: 800–1800 RPM
• Maximum airflow: 47.2 CFM
• Acoustic level: 13.3–30 dB
• Colour: white

How to use

Install the fan on a compatible 120 mm mounting location in your computer chassis or on a radiator, ensuring the airflow direction matches your intended intake or exhaust configuration. Connect the fan to an appropriate motherboard header or fan controller that supports the fan's power connector and allows speed regulation within the 800–1800 RPM range. Secure the fan with screws or vibration-damping mounts as available, and verify clearance for adjacent components and cables before powering the system.

Recommendations

For quieter operation, set the fan to lower RPM profiles during light workloads and increase speed when system temperatures rise. When using multiple fans, establish a balanced intake-to-exhaust airflow to maintain positive or neutral case pressure and avoid dust buildup. Periodic cleaning of the blades and frame will help sustain airflow and acoustic performance over time.